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  NAVMAN 4380; ever see a fish on this thing?

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Author Topic:   NAVMAN 4380; ever see a fish on this thing?
Royboy posted 09-23-2006 09:40 PM ET (US)   Profile for Royboy   Send Email to Royboy  
I'm having rather a lot of difficulty finding usefulness in mt NAVMAN 4380. I had a lower priced monochrome NAVMAN unit on my 130 Sport and it worked pretty well, so when I upgraded boats, I bought what I thought was a better unit, the 4380.

Having used it all Summer now, I find it to be nearly useless at spotting amnything other than the bottom. I've caught more than my share of fish, both warm and cold water species, in depths rangin from 20 to 200 feet. I have yet to mark a fish,except on the very bottom in very deep water.

Now, odds are very good that my boat has had fish under it at some point during the Summer, since I managed to boat many, many limits over the course of these past few months. I don't mark fish, bait, my downrigger weights, nothing but the bottom.

I made a template to get the recomended seven degrees of tilt on the transducer (transom mount), and I stgruggled a bit getting the thing to even show depth, until I waxed the transducer, which fixed that dramatically. For a time, I had the gain set on manual, but even after I sorted that out, nothing: no bait, no fish, no cannon balls, nada.

I emailed NAVMAN, and they sent me back a terse memo about how they've sold lots of them and don't have any "issues". They gave me a number to call, but my bad, I haven't called yet. I mean, do I call from my helm out in the driveway, or while I'm 12 miles offshore fishing?

Anybody else have this unit working properly? It wasn't cheap, and it should work far better than mine does.


bigjohn1 posted 09-24-2006 08:15 AM ET (US)     Profile for bigjohn1  Send Email to bigjohn1     
Roy, I certainly sympathize on purchasing a new unit that does not provide the advertised performance. I also have a Navman unit (600 watt though) and it returns great echos even on tiny fish if I have the sensitivity set for small fish. I can't help but think any 200 watt unit is going to be hit-or-miss for reliable fish locating. The bottom represents a huge mass that is easy to "find" on even a low power unit. Pulsing on and returning discriminant echos from a small fish bladder is another thing. I know you don't want to hear this but.....perhaps it might be time to upgrade to a unit with more power?
Royboy posted 09-24-2006 12:12 PM ET (US)     Profile for Royboy  Send Email to Royboy     
Thanks John, you're right I don't want to hear that I bought a $400 Sounder, when I thought I was buying a Fish finder. Seriously though, my old bottom-of-the-line NAVMAN would at least mark fish and the thermocline. You'd expect when you pay four times as much, the unit would perform at least as well.


Royboy posted 10-03-2006 10:21 AM ET (US)     Profile for Royboy  Send Email to Royboy     
I have contacted NAVMAN who wants me to send them the unit for troubleshooting. In the mean time I have to be without a sounder, so I'm going to do this when I put her up for storage this Winter. What a pain. I'll post how it comes out.


rtk posted 10-03-2006 12:00 PM ET (US)     Profile for rtk  Send Email to rtk     
I had to send my 6600 back this past winter, I was getting no signal from the transducer.

Bad transducer, they replaced it no problem, she works good now.

Good service, the tech was very attentive and willing to spend time on the phone with me. Turnaround was pretty quick too- week or two if I remember correctly.


Royboy posted 10-03-2006 04:12 PM ET (US)     Profile for Royboy  Send Email to Royboy     
The tech support waffled a bit on whether to send back the transducer or display unit, but in the end opted to have me send the display. I get the bottom, speed and temp, so the transducer is sending and receiving, the display just isn't handling the data returned properly, or so the thinking goes.


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